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Matrix.org homeserver grinds to a halt after RAID meltdown

ID: e65e6213-e3c2-55d8-94c4-a9677eb7d5ac

STIX ID: report--e65e6213-e3c2-55d8-94c4-a9677eb7d5ac

Feed Name: The Register (Security)

Date Published: 2025-09-03

Date Updated: 2026-04-26

Author: Richard Speed

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Matrix.org’s primary homeserver went offline after a RAID failure during a storage upgrade led to PostgreSQL filesystem issues, requiring a full 55 TB snapshot restore and replay of 17 hours of traffic; while Matrix.org-hosted users were unable to send or receive messages, federated homeservers were unaffected, no data loss is expected, and the incident highlights the resilience of Matrix’s decentralized architecture despite the absence of an SLA for the free service.

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